
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript" src="js/tool/jquery/jquery-3.2.1.min.js"></script>
<script type="text/javascript" src="js/index/jquery.prc.js"></script>
<title></title>
</head>
<body>
<form action="" method="post">
user input:<input type="text" id="sometext"/>
<button id="smt">Click</button>
<br>
<select id="choose">
<option id="1">A</option>
<option id="2">B</option>
<option id="3">C</option>
<option id="4">D</option>

</select>
</form>
<button id="ronly">click to readonly</button>
<br>
<button id="conly">cancle readonly</button>
<br>
<button id="show">show user input</button>
<br>
<button id="s">show uer choose</button>
<br>
<button id="c">input user choose</button>
</body>
</html>